/**
 *
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL LICENSE BLOCK *****
 * allocimbuf.c
 *
 * $Id: divers.c 21649 2009-07-17 02:43:15Z broken $
 */

//#include "BLI_blenlib.h"
//#include "BLI_rand.h"
//
//#include "imbuf.h"
//#include "imbuf_patch.h"
//#include "IMB_imbuf_types.h"
//#include "IMB_imbuf.h"
//#include "IMB_allocimbuf.h"
//#include "IMB_divers.h"
//#include "BKE_utildefines.h"
//#include "BKE_colortools.h"
//
package blender.imbuf;

public class divers {
//void imb_checkncols(struct ImBuf *ibuf)
//{
//	unsigned int i;
//
//	if (ibuf==0) return;
//
//	if (IS_amiga(ibuf)){
//		if (IS_ham(ibuf)){
//			if (ibuf->depth == 0) ibuf->depth = 6;
//			ibuf->mincol = 0;
//			ibuf->maxcol = 1 << (ibuf->depth - 2);
//			/*printf("%d %d\n", ibuf->maxcol, ibuf->depth);*/
//			return;
//		} else if (IS_hbrite(ibuf)){
//			ibuf->mincol = 0;
//			ibuf->maxcol = 64;
//			ibuf->depth = 6;
//			return;
//		}
//	}
//
//	if (ibuf->maxcol == 0){
//		if (ibuf->depth <= 8){
//			ibuf->mincol = 0;
//			ibuf->maxcol = (1 << ibuf->depth);
//			return;
//		} else if (ibuf->depth == 0){
//			ibuf->depth = 5;
//			ibuf->mincol = 0;
//			ibuf->maxcol = 32;
//		}
//		return;
//	} else {
//		/* ibuf->maxcol defines the depth */
//		for (i=1 ; ibuf->maxcol > (1 << i); i++);
//		ibuf->depth = i;
//		return;
//	}
//}
//
//
//void IMB_de_interlace(struct ImBuf *ibuf)
//{
//	struct ImBuf * tbuf1, * tbuf2;
//
//	if (ibuf == 0) return;
//	if (ibuf->flags & IB_fields) return;
//	ibuf->flags |= IB_fields;
//
//	if (ibuf->rect) {
//		/* make copies */
//		tbuf1 = IMB_allocImBuf(ibuf->x, ibuf->y / 2, 32, IB_rect, 0);
//		tbuf2 = IMB_allocImBuf(ibuf->x, ibuf->y / 2, 32, IB_rect, 0);
//
//		ibuf->x *= 2;
//		IMB_rectcpy(tbuf1, ibuf, 0, 0, 0, 0, ibuf->x, ibuf->y);
//		IMB_rectcpy(tbuf2, ibuf, 0, 0, tbuf2->x, 0, ibuf->x, ibuf->y);
//
//		ibuf->x /= 2;
//		IMB_rectcpy(ibuf, tbuf1, 0, 0, 0, 0, tbuf1->x, tbuf1->y);
//		IMB_rectcpy(ibuf, tbuf2, 0, tbuf2->y, 0, 0, tbuf2->x, tbuf2->y);
//
//		IMB_freeImBuf(tbuf1);
//		IMB_freeImBuf(tbuf2);
//	}
//	ibuf->y /= 2;
//}
//
//void IMB_interlace(struct ImBuf *ibuf)
//{
//	struct ImBuf * tbuf1, * tbuf2;
//
//	if (ibuf == 0) return;
//	ibuf->flags &= ~IB_fields;
//
//	ibuf->y *= 2;
//
//	if (ibuf->rect) {
//		/* make copies */
//		tbuf1 = IMB_allocImBuf(ibuf->x, ibuf->y / 2, 32, IB_rect, 0);
//		tbuf2 = IMB_allocImBuf(ibuf->x, ibuf->y / 2, 32, IB_rect, 0);
//
//		IMB_rectcpy(tbuf1, ibuf, 0, 0, 0, 0, ibuf->x, ibuf->y);
//		IMB_rectcpy(tbuf2, ibuf, 0, 0, 0, tbuf2->y, ibuf->x, ibuf->y);
//
//		ibuf->x *= 2;
//		IMB_rectcpy(ibuf, tbuf1, 0, 0, 0, 0, tbuf1->x, tbuf1->y);
//		IMB_rectcpy(ibuf, tbuf2, tbuf2->x, 0, 0, 0, tbuf2->x, tbuf2->y);
//		ibuf->x /= 2;
//
//		IMB_freeImBuf(tbuf1);
//		IMB_freeImBuf(tbuf2);
//	}
//}
//
//
//void IMB_gamwarp(struct ImBuf *ibuf, double gamma)
//{
//	uchar gam[256];
//	int i;
//	uchar *rect;
//	float *rectf;
//
//	if (ibuf == 0) return;
//	if (gamma == 1.0) return;
//
//	rect = (uchar *) ibuf->rect;
//	rectf = ibuf->rect_float;
//
//	gamma = 1.0 / gamma;
//
//	if (rect) {
//		for (i = 255 ; i >= 0 ; i--)
//			gam[i] = (255.0 * pow(i / 255.0 ,
//					      gamma))  + 0.5;
//
//		for (i = ibuf->x * ibuf->y ; i>0 ; i--, rect+=4){
//			rect[0] = gam[rect[0]];
//			rect[1] = gam[rect[1]];
//			rect[2] = gam[rect[2]];
//		}
//	}
//
//	if (rectf) {
//		for (i = ibuf->x * ibuf->y ; i>0 ; i--, rectf+=4){
//			rectf[0] = pow(rectf[0] / 255.0, gamma);
//			rectf[1] = pow(rectf[1] / 255.0, gamma);
//			rectf[2] = pow(rectf[2] / 255.0, gamma);
//		}
//	}
//}
//
//
//void IMB_rect_from_float(struct ImBuf *ibuf)
//{
//	/* quick method to convert floatbuf to byte */
//	float *tof = (float *)ibuf->rect_float;
//	float dither= ibuf->dither;
//	float srgb[3];
//	int i, channels= ibuf->channels;
//	short profile= ibuf->profile;
//	unsigned char *to = (unsigned char *) ibuf->rect;
//
//	if(tof==NULL) return;
//	if(to==NULL) {
//		imb_addrectImBuf(ibuf);
//		to = (unsigned char *) ibuf->rect;
//	}
//
//	if (profile == IB_PROFILE_SRGB && (channels == 3 || channels == 4)) {
//		if(channels == 3) {
//			for (i = ibuf->x * ibuf->y; i > 0; i--, to+=4, tof+=3) {
//				srgb[0]= linearrgb_to_srgb(tof[0]);
//				srgb[1]= linearrgb_to_srgb(tof[1]);
//				srgb[2]= linearrgb_to_srgb(tof[2]);
//
//				to[0] = FTOCHAR(srgb[0]);
//				to[1] = FTOCHAR(srgb[1]);
//				to[2] = FTOCHAR(srgb[2]);
//				to[3] = 255;
//			}
//		}
//		else if (channels == 4) {
//			floatbuf_to_srgb_byte(tof, to, 0, ibuf->x, 0, ibuf->y, ibuf->x);
//		}
//	}
//	else if(ELEM(profile, IB_PROFILE_NONE, IB_PROFILE_LINEAR_RGB) && (dither==0.0f || channels!=4)) {
//		if(channels==1) {
//			for (i = ibuf->x * ibuf->y; i > 0; i--, to+=4, tof++)
//				to[1]= to[2]= to[3]= to[0] = FTOCHAR(tof[0]);
//		}
//		else if(channels==3) {
//			for (i = ibuf->x * ibuf->y; i > 0; i--, to+=4, tof+=3) {
//				to[0] = FTOCHAR(tof[0]);
//				to[1] = FTOCHAR(tof[1]);
//				to[2] = FTOCHAR(tof[2]);
//				to[3] = 255;
//			}
//		}
//		else {
//			for (i = ibuf->x * ibuf->y; i > 0; i--, to+=4, tof+=4) {
//				to[0] = FTOCHAR(tof[0]);
//				to[1] = FTOCHAR(tof[1]);
//				to[2] = FTOCHAR(tof[2]);
//				to[3] = FTOCHAR(tof[3]);
//			}
//		}
//	}
//	else {
//		float dither_value, col;
//		dither= dither/255.0f;
//		for (i = ibuf->x * ibuf->y; i > 0; i--) {
//			dither_value = (BLI_frand()-0.5)*dither;
//			col= tof[0] + dither_value;
//			to[0] = FTOCHAR(col);
//			col= tof[1] + dither_value;
//			to[1] = FTOCHAR(col);
//			col= tof[2] + dither_value;
//			to[2] = FTOCHAR(col);
//			col= tof[3] + dither_value;
//			to[3] = FTOCHAR(col);
//
//			to += 4;
//			tof += 4;
//		}
//	}
//}
//
//void IMB_float_from_rect(struct ImBuf *ibuf)
//{
//	/* quick method to convert byte to floatbuf */
//	float *tof = ibuf->rect_float;
//	int i;
//	unsigned char *to = (unsigned char *) ibuf->rect;
//
//	if(to==NULL) return;
//	if(tof==NULL) {
//		imb_addrectfloatImBuf(ibuf);
//		tof = ibuf->rect_float;
//	}
//
//	if (ibuf->profile == IB_PROFILE_SRGB) {
//		/* convert from srgb to linear rgb */
//
//		for (i = ibuf->x * ibuf->y; i > 0; i--)
//		{
//			tof[0] = srgb_to_linearrgb(((float)to[0])*(1.0f/255.0f));
//			tof[1] = srgb_to_linearrgb(((float)to[1])*(1.0f/255.0f));
//			tof[2] = srgb_to_linearrgb(((float)to[2])*(1.0f/255.0f));
//			tof[3] = ((float)to[3])*(1.0f/255.0f);
//			to += 4;
//			tof += 4;
//		}
//	} else {
//		for (i = ibuf->x * ibuf->y; i > 0; i--)
//		{
//			tof[0] = ((float)to[0])*(1.0f/255.0f);
//			tof[1] = ((float)to[1])*(1.0f/255.0f);
//			tof[2] = ((float)to[2])*(1.0f/255.0f);
//			tof[3] = ((float)to[3])*(1.0f/255.0f);
//			to += 4;
//			tof += 4;
//		}
//	}
//}
}
